technetium-tc-99m-exametazime and Vascular-Fistula

A 50-year-old-man with abdominal pain, who had undergone aortic aneurysm reconstructive surgery (aortic graft) 3 years before, was admitted to the hospital. A CT scan showed findings suggestive of perigraft infection. Scintigraphy with 99mTc-hexamethylpropylene amine oxime (HMPAO)-labeled leukocytes confirmed the diagnosis of aortic graft infection and documented an active concurrent bleeding in the gastrointestinal tract from a secondary aortoenteric fistula. This case illustrates the diagnosis of the precise location of the source of bleeding from aortoenteric fistula by leukocyte scintigraphy. The images aided the surgical team by revealing the aortic site of bleeding and the severity of the problem.

Topics: Contrast Media; Gastrointestinal Hemorrhage; Humans; Incidental Findings; Intestinal Fistula; Leukocytes; Male; Middle Aged; Radionuclide Imaging; Technetium Tc 99m Exametazime; Tomography, X-Ray Computed; Vascular Fistula

Topics: Aged; Aorta, Abdominal; Aortic Aneurysm, Abdominal; Aortic Diseases; Blood Vessel Prosthesis; Duodenal Diseases; Humans; Intestinal Fistula; Leukocytes; Male; Prosthesis-Related Infections; Radionuclide Imaging; Radiopharmaceuticals; Technetium Tc 99m Exametazime; Vascular Fistula